Foldable Electronic Device Including Electronic Pen

1. An electronic device comprising: a foldable housing comprising: a first housing; a second housing connected to one side of the first housing and being rotatable through a first hinge module and disposed to at least partially face the first housing in a folded state; and a third housing connected to an opposite side of the first housing and being rotatable through a second hinge module and disposed to at least partially face the first housing in a folded state, wherein, in a folded state, the foldable housing further comprises: a pen accommodating part defined through a spaced space between a first edge of the second housing and a second edge of the third housing; a flexible display extending from at least a portion of the second housing to at least a portion of the third housing through the first housing; and an electronic pen at least partially accommodated in the pen accommodating part and comprising at least one magnetic force reaction member inside the electronic pen, wherein the electronic device further comprises at least one magnetic force generating member disposed around the first edge of the second housing and/or the second edge of the third housing, and wherein, when the electronic pen is mounted in the pen accommodating part, the location of the electronic pen is maintained through the magnetic force reaction member.

2. The electronic device of claim 1 , wherein the pen accommodating part is configured such that the electronic pen corresponds to an outer surface of the electronic device or is beneath the outer surface of the electronic device.

3. The electronic device of claim 1 , wherein the at least one magnetic force generating member comprises: a first magnetic force generating member disposed around the first edge of the second housing; and a second magnetic force generating member disposed around the second edge of the third housing.

4. The electronic device of claim 3 , wherein, when the electronic pen is accommodated in the pen accommodating part, the at least one magnetic force generating member comprises: a first magnetic force reaction member disposed at a location where the first magnetic force reaction member reacts a magnetic force of the first magnetic force generating member; and a second magnetic force reaction member disposed at a location where the second magnetic force reaction member reacts a magnetic force of the second magnetic force generating member.

5. The electronic device of claim 4 , wherein the first magnetic force generating member and the second magnetic force generating member are disposed to be symmetrical to each other in inclined directions with respect to the pen accommodating part.

6. The electronic device of claim 1 , wherein the at least one magnetic force generating member comprises a magnet or an electromagnet.

7. The electronic device of claim 1 , wherein the at least one magnetic force reaction member comprises a magnet or a metal member that reacts with a magnetic force.

8. The electronic device of claim 1 , further comprising: a first recess disposed through at least a portion of the first edge; and a second recess disposed through at least a portion of the second edge, wherein, when the second housing and the second housing are folded with respect to each other, the pen accommodating part is disposed through the first recess and the second recess.

9. The electronic device of claim 8 , wherein the first recess and/or the second recess has a shape corresponding to an outer surface of the electronic pen.

10. The electronic device of claim 8 , wherein, in a folded state of the electronic device, the first recess and the second recess is disposed such that the distance between the first edge and the second edge gradually increases as the distance from the display increases.

11. The electronic device of claim 10 , wherein the electronic device further comprises an out-folding type electronic device in which the flexible display is exposed to the outside, and wherein when the second housing or the third housing is unfolded, the electronic pen maintains a state in which the electronic pen is attached to the recess of the remaining housing.

12. The electronic device of claim 10 , wherein, in the folded state, the electronic device comprises an in-folding type electronic device in which the flexible display is disposed not to be viewed from the outside, and wherein when the second housing or the third housing is unfolded, the electronic pen maintains a state in which the electronic pen is attached to the recess of the unfolded housing.

13. An electronic device comprising: a foldable housing comprising: a first housing; a second housing connected to one side of the first housing and being rotatable through a first hinge module and disposed to at least partially face the first housing in a folded state; and a third housing connected to an opposite side of the first housing and being rotatable through a second hinge module and disposed to at least partially face the first housing in a folded state, wherein, in a folded state, the foldable housing comprises: a pen accommodating part defined through a spaced space between a first edge of the second housing and a second edge of the third housing; a flexible display extending from at least a portion of the second housing to at least a portion of the third housing through the first housing; a wireless charging module disposed in an interior space of the electronic device, the wireless charging module comprising: a first coil member disposed to a vicinity of the first edge of the second housing and connected to a first charging circuit; and a second coil member disposed to a vicinity of the second edge of the third housing and connected to a second charging circuit; and an electronic pen at least partially accommodated in the pen accommodating part and comprising at least one third coil member connected to a third charging circuitry inside the electronic pen, wherein, when the electronic pen is mounted in the pen accommodating part, the third coil member is disposed at a location at which the third coil member maintains in an arrangement state in which the third coil member performs a wireless charging operation with the first coil member and/or the second coil member.

14. The electronic device of claim 13 , wherein the first coil member, the second coil member, and/or the third coil member comprises a solenoid type coil or a flexible printed circuit board type flat plate coil.

15. The electronic device of claim 13 , further comprising: a processor configured to detect whether the electronic pen is mounted in the pen accommodating part based on the intensity of an electromagnetic signal received from the first coil member and/or the second coil member.

16. The electronic device of claim 15 , further comprising: at least one sensor configured to detect a folding state of the electronic device.

17. The electronic device of claim 16 , wherein the processor detects a folding state of the second housing and/or the third housing through the at least one sensor.

18. The electronic device of claim 17 , wherein the processor controls a charging mode of the electronic pen through the first charging circuitry and/or the second charging circuit, based on the folding state of the second housing and/or the third housing through the at least one sensor.

19. The electronic device of claim 18 , wherein, when detecting that both of the second housing and the third hosing are in the folded state, the processor controls the electronic pen to be charged in a high-speed charging mode through the first charging circuitry and/or the second charging circuit.

20. The electronic device of claim 18 , wherein, when detecting that only one of the second housing and the third hosing is in the folded state, the processor controls the electronic pen to be charged in a general charging mode through the first charging circuitry and/or the second charging circuit.